<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.w3.org/1999/xhtml">
<head>
    <meta charset="UTF-8">
    <title>user/index</title>
</head>
<body>
user/index

<form method="post" th:action="@{/logout}">
    <input type="submit" value="注销"/>
</form>
</body>
</html>